123086902 has 16 divisors (see below), whose sum is σ = 205781040. Its totient is φ = 54874368.

The previous prime is 123086897. The next prime is 123086903. The reversal of 123086902 is 209680321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123086903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94623 + ... + 95914.

It is an arithmetic number, because the mean of its divisors is an integer number (12861315).

Almost surely, 2^123086902 is an apocalyptic number.

123086902 is a deficient number, since it is larger than the sum of its proper divisors (82694138).

123086902 is a wasteful number, since it uses less digits than its factorization.

123086902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190575.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 123086902 is about 11094.4536593741. The cubic root of 123086902 is about 497.4360777446.

The spelling of 123086902 in words is "one hundred twenty-three million, eighty-six thousand, nine hundred two".